#!/usr/bin/env python3

# Copyright (c) 2020-2021 Fpemud <fpemud@sina.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.


import os
from ._prototype import PreBuildImages


class DeviceManager:

    @staticmethod
    def exists(deviceId):
        selfDir = os.path.dirname(os.path.realpath(__file__))
        if not os.path.isdir(os.path.join(selfDir, "dev_" + deviceId)):
            return False
        assert os.path.isfile(os.path.join(selfDir, "dev_" + deviceId, "_build.py"))
        return True

    @staticmethod
    def getFullName(deviceId):
        try:
            exec("from .dev_%s import FULL_NAME as _tmp" % (deviceId))
            return eval("_tmp")
        except ModuleNotFoundError:
            assert False

    @staticmethod
    def getPreBuildImagesObject(deviceId):
        try:
            exec("from .dev_%s._build import PreBuildImages as _tmp" % (deviceId))
            ret = eval("_tmp")
            assert PreBuildImages in ret.__bases__      # I don't know why "assert isinstance(ret, PreBuildImages)" returns False
            return ret
        except ModuleNotFoundError:
            return PreBuildImages()

    @staticmethod
    def getModule(deviceId, moduleName):
        try:
            exec("from .dev_%s import %s as _tmp" % (deviceId, moduleName))
            return eval("_tmp")
        except ModuleNotFoundError:
            assert False
